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. Author manuscript; available in PMC: 2023 Jun 8.
Published in final edited form as: Science. 2023 Apr 28;380(6643):eabn3943. doi: 10.1126/science.abn3943

Fig. 1. New placental mammal phylogeny supports the long-fuse model of diversification.

Fig. 1.

(A) Most interordinal diversification occurred in the Cretaceous, coincident with continental fragmentation and sea level changes. A pulse of intraordinal diversification occurred after the mass extinction event at the Cretaceous-Paleogene (K-Pg) boundary. Green, orange, and yellow shading bounded by gray lines demarcates different time periods. (B) A phylogeny based on divergence times estimated using ~470 kb of near-neutrally evolving sequence for 240 species resolves recalcitrant relationships in the placental mammal phylogeny (black numbers in white circles), including (1) Euarchonta (primates, colugos, and treeshrews), (2) Scrotifera [Perissodactyla (odd-toed ungulates), Cetartiodactyla (terrestrial even-toed ungulates and cetaceans), carnivorans, and bats], (3) Fereuungulata (perissodactyls, cetartiodactyls, carnivorans, pangolins), and (4) Zoomata [perissodactyls and Ferae (carnivorans and pangolins)]. [Species silhouettes are from PhyloPic]